Potential to Eradicate Cancer Stemness by Targeting Cell Surface GRP78
Hsin-Ying Chen1, Ann-Joy Cheng2,3,4
1Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Kweishan, Taoyuan 33305, Taiwan.
Abstract:
Cancer stemness is proposed to be the main cause of metastasis and tumor relapse after conventional therapy due to the main properties of cancer stem cells. These include unlimited self-renewal, the low percentage in a cell population, asymmetric/symmetric cell division, and the hypothetical different nature for absorbing external substances. As the mechanism of how cancer stemness is maintained remains unknown, further investigation into the basic features of cancer stemness is required. Many articles demonstrated that glucose-regulated protein 78 (GRP78) plays a key role in cancer stemness, suggesting that this molecule is feasible for targeting cancer stem cells. This review summarizes the history of finding cancer stem cells, as well as the functions of GRP78 in cancer stemness, for discussing the possibility of targeting GRP78 to eradicate cancer stemness.
Insights
Cancer stemness drives metastasis and relapse. Glucose-regulated protein 78 (GRP78) is key to cancer stemness, offering a target to eradicate cancer stem cells and prevent tumor recurrence.
Area of Science:
- Oncology
- Cell Biology
Background:
- Cancer stem cells (CSCs) are implicated in tumor metastasis and relapse post-therapy.
- Key CSC properties include self-renewal, low population percentage, and distinct substance absorption.
- The precise mechanisms maintaining cancer stemness are not fully understood.
Purpose of the Study:
- To review the discovery and characteristics of cancer stem cells.
- To explore the role of glucose-regulated protein 78 (GRP78) in maintaining cancer stemness.
- To discuss targeting GRP78 as a therapeutic strategy against CSCs.
Main Methods:
- Literature review of cancer stem cell research.
- Analysis of studies investigating GRP78 function in cancer.
- Synthesis of evidence linking GRP78 to cancer stemness properties.
Main Results:
- Cancer stemness contributes significantly to tumor progression and therapeutic resistance.
- GRP78 has been identified as a critical mediator of cancer stemness.
- Targeting GRP78 presents a promising approach for CSC eradication.
Conclusions:
- Understanding cancer stemness is crucial for developing effective cancer treatments.
- GRP78 is a viable molecular target for eliminating CSCs.
- Targeting GRP78 may offer a novel strategy to overcome metastasis and relapse.
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